CN219961227U

CN219961227U - Wireless charging chip module and wireless charging equipment

Info

Publication number: CN219961227U
Application number: CN202321298559.8U
Authority: CN
Inventors: 陈贵
Original assignee: Shenzhen Yuhao Electronic Technology Co ltd
Current assignee: Shenzhen Yuhao Electronic Technology Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-11-03
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to a wireless chip filling module which comprises a radiating fin and a wireless chip filling, wherein the wireless chip filling is attached to a PCB, the radiating fin is attached to the upper surface of the wireless chip filling, the radiating fin comprises a radiating fin main body and a plurality of racks, the area of the radiating fin main body is larger than that of the wireless chip filling, the racks are formed by extending outwards horizontally from the side edges of the radiating fin main body, and the racks and the radiating fin main body are located on the same plane. According to the wireless chip charging module, the radiating fin is additionally arranged on the wireless chip charging, and the plurality of radiating racks of the radiating fin can rapidly radiate heat generated by the chip operation, so that the working temperature of the chip is effectively reduced; and because rack and fin main part that the heat dissipation was used are located the coplanar, can not increase the thickness of fin to when guaranteeing that wireless chip module has good radiating effect, possess the thinner structure of thickness, in order to satisfy the structural requirement of light and thin type high-power wireless charging equipment.

Description

Wireless charging chip module and wireless charging equipment

Technical Field

The utility model relates to the field of wireless charging, in particular to a wireless charging chip module and wireless charging equipment.

Background

Wireless charging technology is mature day by day, like the wireless charging of cell-phone in daily life, utilizes electromagnetic induction mode between wireless charging equipment and the cell-phone, need not the data line to connect, convenient to use is swift, brings good experience for the user.

With the improvement of electronic integration technology, the chip functions are increased, the power of the chip is also increased to 15 watts, challenges are brought to the heat dissipation of the chip, and the heat dissipation requirement of the high-integration wireless charging chip cannot be met only by the heat dissipation mode that heat is conducted to the PCB through the heat dissipation pad at the bottom of the chip.

In order to improve the heat dissipation effect, a radiator is additionally arranged above the wireless charging chip, the radiator is provided with a plurality of fins, and heat is dissipated by means of the radiator, and although the structure is favorable for heat dissipation, the thickness of the wireless charging chip module is larger, and the wireless charging chip module is not suitable for being packaged in small and light wireless charging equipment.

Therefore, a wireless charging chip module with good heat dissipation effect and small thickness occupation space needs to be developed so as to meet the structural requirement of the 15-watt high-power light and thin wireless charging equipment.

Disclosure of Invention

In order to solve the problem that the existing wireless charging chip module can not meet the requirements of heat dissipation effect and thickness dimension at the same time, the utility model provides a wireless charging chip module and wireless charging equipment.

The technical scheme of the utility model is as follows:

the utility model provides a wireless chip module that charges, includes fin and wireless chip that charges, wireless chip subsides dress is on the PCB board that charges, the fin attached in wireless chip's that charges upper surface, the fin includes fin main part and a plurality of rack, the area of fin main part is greater than wireless chip's that charges area, the rack by the outside horizontal extension of side of fin main part forms, the rack with the fin main part is located the coplanar.

Through adopting above-mentioned technical scheme, wireless chip conduction to the fin main part, on a plurality of racks of reconversion to fin main part avris for a plurality of racks outwards extend for leave great space between the rack, be favorable to the heat to dispel respectively from each rack, promote radiating efficiency.

According to the utility model of the scheme, the radiating fin and the wireless charging chip are bonded through heat conduction silica gel.

According to the utility model of the scheme, the gap width of two adjacent racks is equal to the width of the racks.

According to the utility model of the scheme, at least one group of opposite sides of the radiating fin main body are symmetrically provided with a plurality of racks.

According to the utility model of the scheme, the middle positions of the group of opposite sides of the radiating fin are symmetrically provided with the bending pins, and the bending pins form 90 degrees with the radiating fin main body and bend towards the PCB.

Further, the width of the bending stitch is equal to one fifth of the side length of the radiating fin on the side where the bending stitch is located.

Further, the bending stitch and the racks are located on the same group of opposite sides of the radiating fin, and the bending stitch is located between the racks in the middle of the side where the bending stitch is located.

Further, the width of the bending stitch is larger than the width of the rack.

Further, the length of the bending pin is greater than the thickness of the wireless charging chip.

Further, the distance between the two opposite bending pins is larger than the width of the wireless charging chip.

The utility model also provides wireless charging equipment, which comprises a shell, wherein the wireless charging chip module with the scheme is packaged in the shell, and the thickness of the shell is not more than 2 cm.

The utility model according to the scheme has the beneficial effects that:

according to the wireless charging chip module, the radiating fin is additionally arranged on the wireless charging chip, and the plurality of radiating racks of the radiating fin can rapidly radiate heat generated by the chip during operation, so that the working temperature of the chip is effectively reduced; and because rack and fin main part that the heat dissipation was used are located the coplanar, can not increase the thickness of fin to when guaranteeing that wireless charging chip module has good radiating effect, possess the thinner structure of thickness, in order to satisfy the structural requirement of light and thin high-power wireless charging equipment.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a bottom view of a heat sink;

FIG. 3 is a schematic diagram of a side view of a heat sink;

FIG. 4 is a schematic diagram of another side view of a heat sink;

fig. 5 is a graph comparing temperature curves before and after the wireless charging chip is provided with the cooling fin.

In the figure, 1, a fin main body; 2. a rack; 3. bending the stitch; 4. a wireless charging chip; 5. and a PCB board.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

Example 1

As shown in fig. 1 to 4, a wireless charging chip module comprises a cooling fin and a wireless charging chip 4, wherein the wireless charging chip 4 is attached to a PCB board 5, the cooling fin is attached to the upper surface of the wireless charging chip, the cooling fin comprises a cooling fin main body 1 and a plurality of racks 2, the area of the cooling fin main body 1 is larger than that of the wireless charging chip 4, the racks 2 are formed by extending the side edges of the cooling fin main body 1 horizontally outwards, and the racks 2 and the cooling fin main body 1 are located on the same plane.

The radiating fin and the wireless charging chip 4 are bonded through heat conduction silica gel, so that the connection firmness of the radiating fin on the chip can be guaranteed, and the heat of the wireless charging chip 4 is further facilitated to be quickly conducted onto the radiating fin main body 1.

The wireless charging chip of the utility model has the power of 15 watts, and a small amount of heat generated by the work is dissipated through the PCB 5, and the main heat dissipation path of the heat is as follows: from wireless chip conduction to the fin main part that charges, on a plurality of racks 2 of conducting to fin main part 1 avris again, owing to a plurality of racks 2 outwards extend for leave great space between the rack 2, be favorable to the heat to dispel respectively from each rack 2, promote radiating efficiency. Referring to the heat curve shown in fig. 5, curve a is a wireless charging chip without a heat sink, curve B is a wireless charging chip with a heat sink, and when no heat sink is added, the working temperature of the wireless charging chip can reach 96.417 ℃; after the heat sink is arranged, the working temperature of the wireless charging chip is 78.619 ℃ at most.

And because rack 2 and fin main part 1 that the last heat dissipation of fin was used lie in the coplanar can not additionally increase the thickness of fin, guarantee that the whole thickness of wireless charging chip module is less, can encapsulate it in the inside of light and thin wireless charging equipment.

In this embodiment, a plurality of racks 2 are symmetrically disposed on a set of opposite sides of the fin body 1, for example, four racks 2 are symmetrically disposed on upper and lower sides of the fin body 1, specifically, each rack 2 has a width equal to 2 mm, and a gap width between two adjacent racks 2 is also equal to 2 mm. The radiating fin is also provided with bending pins 3, the bending pins 3 and the rack 2 are arranged on the same side, the bending pins 3 and the radiating fin main body are 90 degrees, and the radiating fin is bent towards the PCB 5 so as to be inserted into preset jacks on the PCB 5. The effect of the bending pin 3 can strengthen the connection between the radiating fin and the PCB 5, and part of heat can be conducted to the PCB 5 through the bending pin 3, so that the radiating effect of the radiating fin is further improved.

In this embodiment, the bending pins 3 and the racks 2 are located on the same set of opposite sides of the heat sink, for example, the bending pins 3 and the racks 2 are disposed on the upper and lower sides of the heat sink main body 1; and the bending stitch 3 is located between the two racks 2 in the middle. The width of the bending pin 3 is equal to one fifth of the side length of the radiating fin on one side of the bending pin, so that the bending pin 3 and the PCB 5 can be more firmly connected.

The width of the bending stitch 3 is larger than that of the rack 2, so that the bending stitch 3 has a wider heat conduction surface, and the heat conduction effect of the bending stitch 3 is improved to a certain extent. The length of the bending pin 3 is greater than the thickness of the wireless charging chip 4, so that the bending pin 3 is fully inserted with the PCB 5. In addition, when the bent pins 3 are processed, it should be noted that the distance between two opposite bent pins 3 is larger than the width of the wireless charging chip 4, so as to avoid the interference of the bent pins 3 with the mounting of the heat sink and the chip.

Example two

The utility model provides a wireless chip module that charges, including fin and wireless chip that charges, the structure is with embodiment one, the fin includes fin main part 1, outside horizontal extension of wherein two opposite sides of fin main part 1 forms rack 2, the intermediate position of two other opposite sides of fin main part 1 is equipped with the stitch of buckling 3, it can be seen that the stitch of buckling 3 of this embodiment and rack 2 set up on the different sides of fin, for example upper and lower both sides limit symmetry of fin is equipped with rack 2, then the intermediate position symmetry of the left and right sides limit of fin is equipped with the stitch of buckling 3. The heat dissipation effect of the structure is equivalent to that of the first embodiment, and only the insertion position of the radiating fin and the PCB 5 and the orientation of the rack 2 are changed. The selection of the first embodiment and the second embodiment may be according to the specific circumstances.

Example III

The utility model provides a wireless chip module that charges, includes fin and wireless chip 4 that charges, compares in embodiment one, and two sets of opposite sides of fin main part 1 all are equipped with rack 2, and four sides that are fin main part 1 all are equipped with rack 2 promptly. And the middle position of one group of opposite sides of the radiating fin main body 1 is provided with bending pins 3.

The heat dissipation effect of the heat dissipation plate of the embodiment is slightly better than that of the first embodiment, but for the heat dissipation plate with racks on four sides, a larger space is needed around the wireless charging chip, so that the heat dissipation plate is suitable for wireless charging products with larger specifications.

Example IV

The embodiment provides wireless charging equipment, including the casing, the wireless chip module that charges of above-mentioned scheme is packaged in the casing, and wireless chip module that charges is connected with the magnetic induction coil electricity to still line connection power supply line. The thickness of the housing of the wireless charging device is not more than 2 cm.

Therefore, the wireless charging chip module has a structure with a thinner thickness while having a good heat dissipation effect, so that light and thin wireless charging equipment can be manufactured.

It should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put when the product is used, or the orientation or positional relationship conventionally understood by those skilled in the art, or the orientation or positional relationship conventionally put when the product is used, which is merely for convenience in describing the present utility model and simplifying the description, and is not indicative or implying that the apparatus or element to be referred must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The wireless charging chip module comprises a radiating fin and a wireless charging chip, wherein the wireless charging chip is attached to a PCB, the radiating fin is attached to the upper surface of the wireless charging chip,

the radiating fin comprises a radiating fin main body and a plurality of racks, the area of the radiating fin main body is larger than that of the wireless charging chip, the racks are formed by extending the side edges of the radiating fin main body horizontally outwards, and the racks and the radiating fin main body are located on the same plane.

2. The wireless charging chip module of claim 1, wherein at least one set of opposite sides of the heat sink body are symmetrically provided with a plurality of racks.

3. The wireless charging chip module according to claim 1, wherein a gap width of two adjacent racks is equal to a width of the racks.

4. The wireless charging chip module of claim 1, wherein bending pins are symmetrically arranged at middle positions of a set of opposite sides of the heat sink, and the bending pins are 90 ° with the heat sink main body and bend toward the PCB board.

5. The wireless charging chip module of claim 4, wherein the width of the bent pins is equal to one fifth of the side length of the heat sink on the side thereof.

6. The wireless charging chip module of claim 4, wherein the bent stitch and the racks are located on the same set of opposite sides of the heat sink, and the bent stitch is located between the racks in the middle of the side.

7. The wireless charging chip module of claim 4, wherein the width of the bent pins is greater than the width of the racks.

8. The wireless charging chip module of claim 4, wherein the length of the bent pins is greater than the thickness of the wireless charging chip.

9. The wireless charging chip module of claim 4, wherein a distance between two opposing folded pins is greater than a width of the wireless charging chip.

10. A wireless charging device comprising a housing, wherein the housing encloses the wireless charging chip module of any one of claims 1 to 9, and wherein the housing has a thickness of no more than 2 cm.